Issued Patents All Time
Showing 1–25 of 37 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9368661 | Photodetector | Kazutoshi Nakajima, Toru Hirohata, Wataru AKAHORI, Kazuue Fujita | 2016-06-14 |
| 8482197 | Photocathode, electron tube, field assist type photocathode, field assist type photocathode array, and field assist type electron tube | Toru Hirohata, Hiroyasu Fujiwara, Akira Higuchi | 2013-07-09 |
| 8446094 | Photocathode, electron tube, field assist type photocathode, field assist type photocathode array, and field assist type electron tube | Toru Hirohata, Hiroyasu Fujiwara, Akira Higuchi | 2013-05-21 |
| 8164069 | Luminous body, electron beam detector using the same, scanning electron microscope, and mass analysis device | Shoichi Uchiyama, Yasufumi Takagi, Minoru Kondo, Itaru Mizuno | 2012-04-24 |
| 7910895 | Luminous body, electron beam detector using the same, scanning electron microscope, and mass analysis device | Shoichi Uchiyama, Yasufumi Takagi, Minoru Kondo, Itaru Mizuno | 2011-03-22 |
| 7816866 | Photocathode comprising a plurality of openings on an electron emission layer | Kazutoshi Nakajima, Tomoko Mochizuki, Toru Hirohata | 2010-10-19 |
| 7795608 | Photocathode | Toru Hirohata | 2010-09-14 |
| 7652425 | Transmission type photocathode including light absorption layer and voltage applying arrangement and electron tube | Shoichi Uchiyama, Hirofumi Kan | 2010-01-26 |
| 7586968 | Heater-attached alkali-encapsulated cell and alkali laser apparatus | You Wang, Yujin Zheng, Hirofumi Kan | 2009-09-08 |
| 7557336 | Photodetector having first and second antenna areas with patterns having different cycle intervals | Toru Hirohata, Hiroyasu Fujiwara, Akira Higuchi | 2009-07-07 |
| 7365356 | Photocathode | Toru Hirohata, Tomoko Mochizuki, Masami Yamada | 2008-04-29 |
| 7217932 | UV sensor | Yasufumi Takagi, Kazutoshi Nakajima, Yoshitaka Suzuki, Nobuharu Suzuki | 2007-05-15 |
| 7214971 | Semiconductor light-receiving device | Kazutoshi Nakajima | 2007-05-08 |
| 7208874 | Transmitting type secondary electron surface and electron tube | Shoichi Uchiyama, Hirofumi Kan | 2007-04-24 |
| 7176625 | Photocathode plate and electron tube | Tomoko Mochizuki, Toru Hirohata, Kuniyoshi Mori | 2007-02-13 |
| 7094664 | Method for fabricating semiconductor photodetector | Kazutoshi Nakajima | 2006-08-22 |
| 7045957 | Polycrystal diamond thin film and photocathode and electron tube using the same | Shoichi Uchiyama, Hirofumi Kan | 2006-05-16 |
| 7030406 | Semiconductor photocathode and photoelectric tube using the same | Tadataka Edamura | 2006-04-18 |
| 7030388 | Illuminant, and, electron beam detector, scanning electron microscope and mass spectroscope each including the same | Yasufumi Takagi, Shoichi Uchiyama, Minoru Kondo, Itaru Mizuno | 2006-04-18 |
| 7002132 | Photocathode, electron tube, and method of assembling photocathode | Yasuharu Negi, Yasuyuki Egawa, Toru Hirohata | 2006-02-21 |
| 6933581 | Semiconductor chip, terahertz electromagnetic-wave device, and method of manufacturing these | Tadataka Edamura | 2005-08-23 |
| 6917058 | Semiconductor photocathode | Toru Hirohata, Hirofumi Kan, Kuniyoshi Mori | 2005-07-12 |
| 6903363 | Photocathode | Toru Hirohata, Tomoko Mochizuki, Masami Yamada | 2005-06-07 |
| 6831341 | Photocathode having AlGaN layer with specified Mg content concentration | Hirofumi Kan, Masashi Ohta, Yasufumi Takagi, Shoichi Uchiyama | 2004-12-14 |
| 6563264 | Photocathode and electron tube | Toru Hirohata, Tomoko Mochizuki, Hirofumi Kan | 2003-05-13 |